001/*002 * Licensed to the Apache Software Foundation (ASF) under one or more003 * contributor license agreements. See the NOTICE file distributed with004 * this work for additional information regarding copyright ownership.005 * The ASF licenses this file to You under the Apache License, Version 2.0006 * (the "License"); you may not use this file except in compliance with007 * the License. You may obtain a copy of the License at008 *009 * http://www.apache.org/licenses/LICENSE-2.0010 *011 * Unless required by applicable law or agreed to in writing, software012 * distributed under the License is distributed on an "AS IS" BASIS,013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.014 * See the License for the specific language governing permissions and015 * limitations under the License.016 */017package org.apache.commons.math3.ml.distance;018019import org.apache.commons.math3.util.MathArrays;020021/**022 * Calculates the L<sub>1</sub> (sum of abs) distance between two points.023 *024 * @since 3.2025 */026public class ManhattanDistance implements DistanceMeasure {027028 /** Serializable version identifier. */029 private static final long serialVersionUID = -9108154600539125566L;030031 /** {@inheritDoc} */032 public double compute(double[] a, double[] b) {033 return MathArrays.distance1(a, b);034 }035036}